| Duncan to Racale | 5,872.60 mi (9,451.03 km) |
| Duncan to Racconigi | 5,250.89 mi (8,450.50 km) |
| Duncan to Raffadali | 5,801.67 mi (9,336.88 km) |
| Duncan to Ragusa | 5,873.47 mi (9,452.44 km) |
| Duncan to Ramacca | 5,851.73 mi (9,417.45 km) |
| Duncan to Randazzo | 5,839.84 mi (9,398.31 km) |
| Duncan to Rapallo | 5,329.68 mi (8,577.29 km) |
| Duncan to Ravanusa | 5,826.13 mi (9,376.25 km) |
| Duncan to Ravenna | 5,443.90 mi (8,761.10 km) |
| Duncan to Recanati | 5,540.11 mi (8,915.95 km) |
| Duncan to Recco | 5,325.67 mi (8,570.85 km) |
| Duncan to Reggello | 5,448.71 mi (8,768.85 km) |
| Duncan to Reggio di Calabria | 5,858.44 mi (9,428.25 km) |
| Duncan to Reggio Emilia | 5,370.67 mi (8,643.26 km) |
| Duncan to Reggiolo | 5,368.85 mi (8,640.32 km) |
